What Voltage Should a Car Battery Read While Cranking? 9.6v Minimum
Quick Owner & Driver Verdict What voltage should a car battery read while cranking? At least 9.6V at about 70°F for a fully charged 12-volt lead-acid battery. If it drops below that, inspect the terminals, cables, and starter before replacing the battery. Figuring out what voltage should a car battery read while cranking is one…